This book is different. In 1996 Emma's dad buys her a new computer as a sort of "guilt" gift. Josh gives her an AOL disc that his mother got in the mail. She loads it and so begins their look into the future. When Emma logs on something called Facebook pops up, but everything on it is 15 years in the future, so they get a look at their future lives. Interesting tale with a look at what the tiniest ripples in the present can cause in the future. Recommend.